P
US7036175B2ExpiredUtilityPatentIndex 92

Washing machine with pay activated bulk detergent dispenser

Assignee: MAYTAG CORPPriority: Feb 19, 2002Filed: Feb 19, 2002Granted: May 2, 2006
Est. expiryFeb 19, 2022(expired)· nominal 20-yr term from priority
Inventors:SEARS JEFFREY LWUNDERLICH DANIEL F
D06F 34/28D06F 39/022D06F 2105/42D06F 33/37
92
PatentIndex Score
29
Cited by
49
References
8
Claims

Abstract

An approved washing machine and method of washing laundry is provided wherein a user can select an amount of an additive, such as detergent, to be automatically supplied from a bulk additive reservoir to the washing machine tub during the appropriate time in the wash cycle. The selected amount of additive corresponds to the amount of payment deposited by the user in the machine. The payment may be made by coin, currency, or debit card.

Claims

exact text as granted — not AI-modified
1. A method of washing laundry in a washing machine having a rotatable tub and a detergent reservoir containing detergent, the method comprising:
 loading laundry into the tub; 
 making a monetary payment to the machine corresponding to a selected quantity of detergent to be used during a wash cycle of the machine; 
 staffing the machine operation; 
 automatically transferring the selected quantity of detergent from the reservoir to the tub during the wash cycle of the machine. 
 
   
   
     2. The method of  claim 1  wherein the payment is made with coins or currency. 
   
   
     3. The method of  claim 1  wherein the payment is made with a debit card. 
   
   
     4. The method of  claim 1  wherein the selected quantity of detergent is less than the volume of the reservoir. 
   
   
     5. The method of  claim 1  wherein the detergent is transferred to the tub by pumping. 
   
   
     6. The method of  claim 1  further comprising making a second monetary payment to the machine corresponding to a selected quantity of a laundry additive to be used during the operation of the machine. 
   
   
     7. The method of  claim 6  wherein the additive is fabric softener. 
   
   
     8. The method of  claim 6  wherein the additive is bleach.

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